Type-writing machine



R LASA H.

NE' NOVI MAGHnted IHNG Pat TYP Ve T11 UNITED STATES PATENT OFFICE..-

GODFREY H. LASAR, OF ST. LOUIS, MISSOURI.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 415,528, dated November19, V1889.

Application filed October 1l, 1886. Renewed October 22, 1889. Serial No.327,785. (No model.)

souri, have invented a certain new and use-` ful Improvement inType-Vriting Machines,

` ot' which the following is a full, clear, and

exact description, reference being had to the accompanying drawings,forming partot this speclfication, and in which- Figure l is a top viewillustrating my improvement. Flg. 2 is a side elevation. Fig.

3 is a rear elevation. Fig. et is a detail front elevation. Fig. 5 is ahorizontal section taken on line 5 5, Fig. 2, looking' in the directionof the arrows. Fig. (5 is a detail section showing part of thecarriage-roller and part of the ribbon-holder.

This invention relates to improvements in ribbon spools and holders tortype-writers; and it consists in features of novelty hereinafter fullydescribed, and pointed out in the claims.

Referring to the drawings, A represents the paper-roller, and Brepresents a block supported on a stein B, by which it is secured to themain frame or base of the type-writer. Dovetailed into the block B is alaterally- -moving frame O, which carries the ribbonspools D and E, theblock B being provided with a set-screw B2, by which the frame O maybeshifted sidewise to change the position of the surface of the ribbon onwhich the type strikes, the inner end ot the screw B2 entering the partO of the frame that is dovetailed into the block B. The frame G hasprojections O', into which are screwed inclined journal-pins F, as shownin Fig. 5. Upon the j ournal-pins F it ratchet-Wheels G, which have hubsG, provided with flanges G2, and extending outward from the hubs G arenoncircular extensions G2, over which slip the spools D and E, thesockets in the spools corresponding in shape with the extensions G3. Thespools are heldin place on the extensions by spring-catches I-I, securedto the extensions G3 in slots or openings H. Itwill thus be seen that bysimply pressing inward on the springs H the spools may be removed, andit will also be seen that the spools will be made to revolve or turnwith the ratchet-wheels G. The ratchet-wheels are held upon the journals`ends of which lit in the hubs F by means of a U-shaped frame I, theupper l between the flanges G2. (See Fig. 4.)

IVhile the framev prevents the ratcheti wheels' from slipping` ott thejournals, itrdoes not interfere with their rotary movement. The trame Iis pivoted to the frame C at I', and its tension against the hubs G isincreased or diminished by a set-screw I2, and

-by loosening the set-screw the frame may be `mov ed back from the hubsG to permit of the removal of the ratchet-wheels from the journal-pins.

In Fig. 2 the spool and ratchet-wheel on the side of the devicepresented in the ligure are removed.

.I represents a bi t' u rcated dog, the respective arms J of which engage the respective ratchetwheels G. The dog is pivoted to a lever L atL so as to be swung or moved into engagement with either of theratchet-wheels, so that the ribbon M may be alternately wound from oneonto the other, and the dog is held` in engagement with theratchet-wheel by a spring J2, connecting it to the frame O. The lever Lis pivoted to the frame O at L2, and

`may be provided with a finger-piece L3, by

which it maybe depressed to turn the spools through means of the dog; orit may be connected by a bar or rod L4 to a bar or rod (not shown,)extending beneath the key-levers of the machine, so that each time akey-lever is operated the spools will be turned. In another application,Serial No. 232,733, tiled March 28, 1887, I have shown, described, andclaimed an equivalent means for feeding the ribbon. The upper end of theframe O projects inwardly toward the roller, forming a horizontalportion O2.

The ribbon M passes from one spool up and over a bar N, which isinclined toward the roller, forward and around the front end of an armO,which projects over the roller, back vand over a bar N', which isinclined toward the roller, and down to the other spool, the bars N andN having verticalV projections N2 and the arm O having projections Oextending horizontally rearward to prevent the displacement of theribbon. The arm O extends over the paper-roller A, as stated, and holdsthe ribbon in close proximity to the roller, as shown in Fig. 2. Topermit of the arm being thrown up, as shown in Fig. 6, to expose theroller and the printing it is hinged to the frame C, which supports it,at O2, and when thrown up it comes against a projection O3 on the frameC. It is held in its lower position, against a projection O4, by aspring Oi", connecting a lug -O6 on the arm to the frame O, as shown inFig. 2. Vith this arrangement the ribbon is supported in a line diagonalto the length of the roller A and is supported above the Toller-topermit of the printing being done on top of the roller, where it can bemore conveniently inspected than when done beneath the roller, such anarrangement being convenient to be used in connection with a machinewhere the type-bars have a downward movement-as, for instance, like thatshown in my application Serial No. 215,907. The ribbon is made to crossitself, as shown in Fig. l, so that where it is desired to print througha single thickness of the ribbon, (instead of through a doublethickness,) as

shown in my application Serial No. 35,145,V

frame, spools secured to the frame,arm for supporting the ribbon overthe paper-roller, block supporting the spool-frame, and screw foradjusting the spool-frame, substantially as and for the purpose setforth.

3. In a type-writer, the combination of a frame extending upward andinward and ribbon-spools, the spool-journals inclined toward the roller,guide-bars inclined toward the. roller, arm extending inward from theframe over the roller, and aribbon extending from spool to spool overand under the end of the arm obliquely to the length of the roller.

4. In a type-writer, the combination of the frame, projections on theframe, journal-pins secured `to the projections, ratchet-wheels havingflanged hubs and extensions and fitting on the journal-pins, spoolsfitting on the extensions of the ratchet-wheels, springcatches forholding the spools on the extensions, and frame fitting in the angedhubs of the ratchet-wheels, substantialljT as and for the purpose setforth.

5. In a type-writer, the combination of the frame, projections C on theframe,'journal pins F, secured to the projections, .ratchet- Wheels G,flanged hubs G', secured to the ratchet-wheels and having extensions G3,spools fitting on the extensions, springs H, hinged frame I, bearingagainst the hubs G of the ratchet-Wheels, and set-screw I2,substantially as set forth.

GODFREY H. LASAR.

Vitnesses:

SAML. KNIGHT, GEO. H. KNIGHT.

